XB3550-2R5307-R , 300F Supercap 2.5V Radial, Can - Snap-In 7 mOhm 1500 Hrs @ 70°C 1.378" Dia (35.00mm). we specialize in Eaton (formerly Cooper Bussmann) XB3550-2R5307-R electronic components. XB3550-2R5307-R can be shipped within 24 hours after order.